Frame synchronization method for WSNs
Zhang Yong-guan · Transducer and Microsystem Technologies · 2015
Aiming at problem that in wireless sensor networks( WSNs),too much frame synchronization overhead and low transmission efficiency,present a novel method of communication frame synchronization based on probability decoding. In this method,the frame synchronization is constructed by replacing the communication data with synchronization symbols before transmission. To prevent possible errors,symbols are introduced at known positions by communication data replacement. After completing the frame synchronization and obtaining the encoded data,the receiver can be used for decoding the initialization based on the replacement positions of the frame synchronization symbols. Probability decoding can then be performed. The simulation results illustrate that the new frame synchronization scheme greatly improves the transmission efficiency,with only a small deterioration in the error correction performance,thus validating our proposed method.